Michelle gets a cup of coffee and a muffin every day for breakfast from one of the many coffee shops in her neighborhood. She picks a coffee shop each morning at random and independently of her choices on other days. The average price for a cup of coffee is $1.40 with a standard deviation of $0.25 and the average price of a muffin is $2.60 with a standard deviation of $0.10 and the two prices are independent of each other at each coffee shop.